I am using a Mercury with 2 Futaba R6208SB receivers in my jet. Several times when I turn the Mercury on, Rx1 and Rx2 status change constantly and rapidly between "OK" and "FS". It changes so fast that you can't recognize the words - just see it change status. Receiver's leds are constantly green.
Anyway, it seems that all servos react just fine.
I leave the transmitter on and turn the mercury off and on once or twice and both Rx status are OK.
What cause this problem? Is it a real FS situation?
Is it safe for use?